Search Results for: Textile hosepiping armour of other materials
(lots, and lots, and lots of energy). a mm sphere has a volume of ~ cm . since you're making solid bullets out of this, let's assume you've somehow managed to produce, contain, and fire anti-lead. the density of lead is g/cm , so you have grams of the stuff. so your bullet will be completely consumed
g/cm , which is less dense than styrofoam. on the other hand, the annihilation of g of antimatter with g of matter is going to release a smidge under kilotons of energy, so your target is almost certainly just going to be vaporized, at which point the question of "penetrating" it becomes rather moot...
https://worldbuilding.stackexchange.com/questions/164082/how-fast-does-an-antimatter-bullet-need-to-move-to-pierce-rather-than-explode